Lynn Ann Hennessy, LPC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

178.006817 Issued in IL

Practice address

2340 S Highland Ave Ste 300
Lombard, IL 60148-5397

Phone

(630) 261-1210

Fax

(630) 261-1211

NPI assigned

Apr 20, 2026

Sex

Female

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1776643200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776643200000",
    "number": "1972447837",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "537 W CROCKETT AVE",
            "city": "ELMHURST",
            "state": "IL",
            "postal_code": "601261800",
            "telephone_number": "630-975-1037"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2340 S HIGHLAND AVE STE 300",
            "city": "LOMBARD",
            "state": "IL",
            "postal_code": "601485397",
            "telephone_number": "630-261-1210",
            "fax_number": "630-261-1211"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HENNESSY",
        "first_name": "LYNN",
        "middle_name": "ANN",
        "credential": "LPC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-04-20",
        "last_updated": "2026-04-20",
        "certification_date": "2026-04-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "IL",
            "license": "178.006817",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hematology Oncology Specialists L.L.C.
• Matthew S Hendrickson, OD
• Veronica Hene, D.O.
• Valerie Renee Heneghan, M.A., CCC-SLP/L
• Michele Hennessey
• Heather Henschel, PHARMD
• Eun J Heo, OTR/L
• Charlotte Grace Herbolsheimer, MS CF-SLP
• Alyssa A Hernandez
• Melaney Hernandez

• Mental Health Counselor in Lombard, IL
• Providers in Lombard, IL by specialty
• Mental Health Counselor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.